Per Wallgren

4.0k total citations
129 papers, 3.0k citations indexed

About

Per Wallgren is a scholar working on Animal Science and Zoology, Small Animals and Infectious Diseases. According to data from OpenAlex, Per Wallgren has authored 129 papers receiving a total of 3.0k indexed citations (citations by other indexed papers that have themselves been cited), including 64 papers in Animal Science and Zoology, 47 papers in Small Animals and 41 papers in Infectious Diseases. Recurrent topics in Per Wallgren's work include Animal Virus Infections Studies (43 papers), Microbial infections and disease research (34 papers) and Viral gastroenteritis research and epidemiology (27 papers). Per Wallgren is often cited by papers focused on Animal Virus Infections Studies (43 papers), Microbial infections and disease research (34 papers) and Viral gastroenteritis research and epidemiology (27 papers). Per Wallgren collaborates with scholars based in Sweden, United Kingdom and Denmark. Per Wallgren's co-authors include Caroline Fossum, Lennart Melin, Mohammad Katouli, Marianne Jensen‐Waern, Mikael Berg, Anne-Lie Blomström, R. Möllby, Eva Wattrang, Magdalena Jacobson and Claes Fellström and has published in prestigious journals such as PLoS ONE, Applied and Environmental Microbiology and Journal of Clinical Microbiology.

In The Last Decade

Per Wallgren

124 papers receiving 2.8k citations

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author Last Decade Papers Cites
Per Wallgren 1.7k 991 764 544 536 129 3.0k
Miquel Nofrarías 1.9k 1.1× 1.4k 1.4× 338 0.4× 585 1.1× 676 1.3× 73 3.3k
Mathias Ritzmann 1.4k 0.8× 1.1k 1.1× 300 0.4× 659 1.2× 773 1.4× 148 2.8k
Norbert Stockhofe-Zurwieden 956 0.6× 1.3k 1.3× 353 0.5× 606 1.1× 514 1.0× 97 3.0k
F. Madec 1.3k 0.8× 932 0.9× 339 0.4× 510 0.9× 489 0.9× 82 2.1k
Z. Pejsak 938 0.6× 976 1.0× 326 0.4× 290 0.5× 446 0.8× 219 2.8k
J.M.J. Rebel 1.7k 1.0× 1.1k 1.1× 356 0.5× 181 0.3× 562 1.0× 108 3.2k
Kent Schwartz 2.1k 1.2× 1.9k 1.9× 505 0.7× 226 0.4× 1.2k 2.2× 111 3.2k
H. John Barnes 1.1k 0.7× 961 1.0× 214 0.3× 468 0.9× 208 0.4× 116 2.6k
Silke Rautenschlein 1.1k 0.7× 931 0.9× 289 0.4× 345 0.6× 200 0.4× 148 2.7k
Rodger Main 2.1k 1.3× 1.8k 1.8× 356 0.5× 188 0.3× 998 1.9× 109 2.9k

Countries citing papers authored by Per Wallgren

Since Specialization
Citations

This map shows the geographic impact of Per Wallgren's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Per Wallgren with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Per Wallgren more than expected).

Fields of papers citing papers by Per Wallgren

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Per Wallgren. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Per Wallgren. The network helps show where Per Wallgren may publish in the future.

Co-authorship network of co-authors of Per Wallgren

This figure shows the co-authorship network connecting the top 25 collaborators of Per Wallgren. A scholar is included among the top collaborators of Per Wallgren based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Per Wallgren. Per Wallgren is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Jacobson, Magdalena, et al.. (2025). A comparison of two systems for group housing of gestating sows - effects on productivity, removal, and treatments. Porcine Health Management. 11(1). 1–1. 1 indexed citations
2.
Liu, Lihong, Mikhayil Hakhverdyan, Per Wallgren, et al.. (2024). An interlaboratory proficiency test using metagenomic sequencing as a diagnostic tool for the detection of RNA viruses in swine fecal material. Microbiology Spectrum. 12(10). e0420823–e0420823.
3.
Wallgren, Per, et al.. (2024). Impact of feed, light and access to manipulable material on tail biting in pigs with intact tails. Acta veterinaria Scandinavica. 66(1). 2–2. 2 indexed citations
4.
Jacobson, Magdalena, et al.. (2023). Dermatophytosis caused by Trichophyton mentagrophytes complex in organic pigs. Acta veterinaria Scandinavica. 65(1). 32–32. 2 indexed citations
5.
Berg, Mikael, et al.. (2018). Detection and genetic characterisation of porcine circovirus 3 from pigs in Sweden. Virus Genes. 54(3). 466–469. 80 indexed citations
6.
Blomström, Anne-Lie, Caroline Fossum, Per Wallgren, & Mikael Berg. (2016). Viral Metagenomic Analysis Displays the Co-Infection Situation in Healthy and PMWS Affected Pigs. PLoS ONE. 11(12). e0166863–e0166863. 35 indexed citations
7.
Grau‐Roma, Llorenç, Poul Bækbo, Nicolas Rose, et al.. (2012). Clinical and laboratory studies on herds affected with postweaning multisystemic wasting syndrome in Denmark, France, Spain, and Sweden: Disease progression and a proposal for herd case definition. Journal of Swine Health and Production. 20(3). 129–136. 3 indexed citations
8.
Sjölund, Marie & Per Wallgren. (2010). Field experience with two different vaccination strategies aiming to control infections with Actinobacillus pleuropneumoniae in a fattening pig herd. Acta veterinaria Scandinavica. 52(1). 23–23. 14 indexed citations
9.
Fossum, Caroline, Bjørn Lium, Gunilla Blomqvist, et al.. (2010). Dynamics of serum antibodies to and load of porcine circovirus type 2 (PCV2) in pigs in three finishing herds, affected or not by postweaning multisystemic wasting syndrome. Acta veterinaria Scandinavica. 52(1). 22–22. 16 indexed citations
10.
Bálint, Ádám, Giorgi Metreveli, Frederik Widén, et al.. (2009). The first Swedish H1N2 swine influenza virus isolate represents an uncommon reassortant. Virology Journal. 6(1). 180–180. 23 indexed citations
11.
Jacobson, Magdalena, Anna Aspán, Ann Nordengrahn, Maria Lindberg, & Per Wallgren. (2009). Monitoring of Lawsonia intracellularis in breeding herd gilts. Veterinary Microbiology. 142(3-4). 317–322. 10 indexed citations
12.
Wallgren, Per, et al.. (2000). Detection of serum antibodies against Erysipelothrix rhusiopathiae as diagnostic method in pigs.. 52(2). 69–76. 4 indexed citations
13.
Virtala, Anna‐Maija, et al.. (2000). Varying Effects of Infections withMycoplasma hyopneumoniaeon the Weight Gain Recorded in Three Different Multisource Fattening Pig Herds. Journal of Veterinary Medicine Series B. 47(6). 461–469. 10 indexed citations
14.
Holmgren, Noél, N. Lundeheim, & Per Wallgren. (1999). Infections with Mycoplasma hyopneumoniae and Actinobacillus pleuropneumoniae in Fattening Pigs. Influence of Piglet Production Systems and Influence on Production Parameters. Journal of Veterinary Medicine Series B. 46(8). 535–544. 17 indexed citations
15.
Wattrang, Eva, Per Wallgren, Anne Lindberg, & Caroline Fossum. (1998). Signs of Infections and Reduced Immune Functions at Weaning of Conventionally Reared and Specific Pathogen Free Pigs. Journal of Veterinary Medicine Series B. 45(1-10). 7–17. 24 indexed citations
16.
Wallgren, Per, et al.. (1994). Porcine Lung Lesions at Slaughter and their Correlation to the Incidence of Infections byMycoplasma hyopneumoniaeandActinobacillus pleuropneumoniaeduring the Rearing Period. Journal of Veterinary Medicine Series B. 41(1-10). 441–452. 35 indexed citations
17.
Wallgren, Per, et al.. (1993). Control of Infections with Mycoplasma hyopneumoniae in Swine Herds by Disrupting the Chain of Infection, Disinfection of Buildings and Strategic Medical Treatment. Journal of Veterinary Medicine Series B. 40(1-10). 157–169. 16 indexed citations
18.
Wallgren, Per, Karin Artursson, Caroline Fossum, & Gunnar V. Alm. (1993). Incidence of Infections in Pigs Bred For Slaughter Revealed by Elevated Serum Levels of Interferon and Development of Antibodies toMycoplasma hyopneumoniaeandActinobacillus pleuropneumoniae. Journal of Veterinary Medicine Series B. 40(1-10). 1–12. 51 indexed citations
19.
Holmgren, Noél, et al.. (1990). Guide lines for the addition of antibiotics to pig feed.. 42(10). 407–413. 2 indexed citations
20.
Wallgren, Per, et al.. (1990). Time relationship between Mycoplasma hyopneumoniae infection, age at slaughter and lung lesions at slaughter.. 3 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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